Tractor plow



BQE. REED AND J. E. CLIPPING'ER. TRACTOR PLow.

APPLICATION FILED DEC. 3I 1920.

1,420,576.. Y Patendfune 20, 1922.

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"El @El llmlllllmlmzmiri ATTORN EY B. E. REED AND1. E. CL|PP lNGER.

TRACTOR PLow.

APPLICATION FILED DEC. 3, 1,920.

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ATTORNEY fllll B. E. Hlitl) AND J. E. CLIPPINGER.

TRACTOR PLOW.

APPLICATION. man nec. 3. 1920- vImnwi Junezo, 1922.

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DELPHIA, PENNsYLvANrA.V

TRACTORl PLOW. .f

Specification of Letters Patent. i Patented une .20, 1922. ,y Original application led April 17, 1919, Serial No. 290,729. Divided and thisapplieaton filed Becembery 3, 1920. Serial'Nof 428,017.

To all whomz't may concern.'

f Be it known that we, BENJAMIN E. linnn and JOHN E. CLIPPINGER, citizens of the United States, residing, respectively, lat Ridgely, in the county of Caroline and State of Maryland, and' Philadelphia, in the county of Philadelphia and State -of Pennsylvania, have invented a new and useful Tractor Plow, of which the following is a specification. n

This invention relatesY to tractor plows and particularly to mechanism. for raising. the plows ofll the ground so that the implement may be readilytransported.

Objects of the invention are to provide-fa simple mechanism of this character which is self-lockingwhen the plows are raised 'off the ground so that no amount of-jolting "will release the plows; and toj provide 'means' for throwing off' the mechanism when locked.

This case is a division of -an application filed by us April 17, 1919, Serial No. 290,7 29, which application was allowed October 21, 1920.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawings forming part of this specification, with the understanding, however, that the invention is not Vconfined to any strict conformity with the showing of.

the drawings, but may. bechanged and modied so long as such changes and modifications .mark no material 'departure from the in the appended claims.

Y .In thedrawingszej n Fig. 1 is an elevation of the tractor plow, with some near .parts removed. to avoid hiding more distant parts.

salient features of the invention as expressed Fig. 2 is a plan view of the tractorfplow,

with one set of the plows in active position and the other set lifted out of active position.' Y Y. Fig. 3 is a section on the line 3--3 of Fig.

2,` omitting some distant parts, Y

Fig. f4 a section on the line L1-1-4: of

Fig. 2.

Fig 5j isa section on the line 5 5.l of

4Fig, 2, omitting some distant parts.

. Fig. 6 is a section on the line 6-4-.6 of vFig-3. v

` lowered. 4

Extending through the passages 3. in the `mainhousing 1 are rock shafts 19 andrZO ing lengthwise of the housing is an arbor tV I lIlElT-TAIBLIIN' E. REED, 0F RIGELY, MARYLAND, AND JOHN 'CLIPPINGER,VOF PHILA- v projecting beyond the ends of the housing i Keyed to each end of thearbor t isa casting 5 .projecting forwardly and rearwardly therefrom. At the forward ends of the castings 5 there are secured theA rear ends .0f

a voke 6, with the sides approaching and ultimately uniting at and there shape-l to receive a linker other vconnection with a tractor. j Y ToA the rear end of each casting 5 there is'Y connected one end of an arm 8 by means of afpin 9 constituting a pivot ,for the arm v8. Y

The'other end of the arm 8 has a ystub axle 10 fast theretoV andy each stub axlen carries a wheel 11 which may. constitute either "the furrow wheel or the land wheel. Mounted Vat one end upon each ,stubk axle is a link 12,

Vthe other end of which isl connected. to one end of a lever 18 pivoted to a frame. 14 erected on the forwardpart of the .casting 5. The frame 14 is provided with a toothedl Y segment k15` curved aboutr the axis of the pivot of the lever'13, and the lever carries a locking pawl 16 under the control of an op- Veratin'g rod 17 terminating ina manipulating end 18 adjacent to thatend of the lever 13,remote from the. pawl orlatch. `There are two such levers and lock means therefor,

respectively, constituting plow beams. At

the forward vone lever yfor each stub'axle, so that the stub i y end the` rock shafts carryrock .arms21, 22 respectively, connected at'` the'v ends 're-mote from the. shafts by *al link 23. One of the rock arms', say the rook arm 21,' is connected by another link 24 to theouter end of a rock arm 25. made fast -atthe inner r end to; a shaft 26 yextending 'lengthwise of the machine and 1mounted lin bearings. 27

carried bythe main'housing 1. yIfile-*two 10oYV rock shafts or plow beams 19 and 20 extend through respective plow beams 28 and 29 `at the rear of the projections 2, and .eachI shaft 19 and 20 has a collar A30 fast thereto and hand plows,

f of operation, those .ceeds as beforebut in the had located in a counterbore 31 of the beam 28 or 29, the shaft extending' rearwardly beyond the beam. 1n this manner, each shaft 19 and 2O is mounted to rock in the main housing 1 and each beam 28 and 29 is mounted to rock upon the respective shaft 19 or 20, and is held from longitudinal movement on the shaft by the housing,r 1 at the forward end and the collar 30 at the rear end.

The beam 28 is provided with an arm 32 projecting from one side thereof and the beam 29 has a similar arm 33, the two arms being connected together by a link 34 so as to move simultaneously to the same extent. Pivoted to the arm 33 is a link 35 in turn connected to an arm 36 fast to the shaft 26 and projecting therefrom in a direction opposite to the direction of projection of the arm 25 from the same shaft.

Mounted on and fast to the shaft 26 is a gear wheel 37 in mesh with a pinion 38 car ried by and fast to the short shaft 39 journaled in the main housing 1. Coupled to the shaft 39 by a universal joint 40 is a rod 41 carried forwardly and upwardly at a suitable angle and passed through a journal bearing 42 having' side extensions 43 secured to uprights 44 rising from the yoke 6 and held steady by braces 45. The rod 41 carries a manipulating wheel 46 at its upper end which carries a handle 47 whereby the rod 41 may be rotated. This rotates the pinion 38, which in turn causes rotation of the gear wheel 37 and shaft 26 carrying it.

The rear end of each shaft 19 and 20 carries or is shaped into a plow standard 48 'and 49, respectively. The rear end of each beam 28 and 29 is shaped into a plow standard 50 and 51, respectively. These plow standards carry plows 52, 53, 54 and 55, two of which, the plows 52 and 55, are right and the other two of which, namely 53 and 54, are left hand plows. 1t will be understood, of course, that the particular number and arrangement of plows is not obligatory.

When the plowing opcrationis proceeding, two of the plows, say the right hand plows, are set to enter the ground and the other two plows are elevated so as to be out plows out of operation being shown in the drawings as the left hand plows. When the tractor plow has traveled from one side, or one end, of the field to the other, the machine is turned around and started back upon unplowed ground neXtto the furrows just previously produced. Then the right hand plows 52 and 55 are lifted 4to the inoperative position and the left hand plows V53 andV 54 are dropped to the operativeposition, whereupon, the plowingproopposite direction. The mechanism so far described is dcjscribed with greater particularity and is claimed in vtheparent application. The present invention is limited to the means designed to raise the plows from the ground so that the structure may be transported from place to place.

There is provided a shaft56 extending` transverselyof the machine and mounted at the ends in standards 57 erected on the'castings 5. rEhe shaft carries an arm 58 rising therefrom and to this arm there is attached one end of a. stand 59, such as a .manila or wire rope. The other end of the strand 59 is wound upon a drum69 carried by the uprights 44, the drum constituting' part of a shaft journaled in suitable bearings in the uprights 44 and carrying at one end a hand wheel 61. The shaft 56 is provided with upstanding arms 62 in line with the shafts 19 and 20, respectively, andV each arm has pivoted to its upper end one end of a link 63 having the other end divided, as shown at 64, to straddle'a swivel connection V65a fast on the shaft 19er 20, as the case may be. link 64 is formed with a bowedportiony 65 forming a recess 66 shaped tc engage over the shaft 56. The arrangement is suchV that on rockingthe shaft 56 in a direction to move the arms 62 forwardly the bowed portion is brought over the shaft 56 into engagement therewith, forming an alined lock. At the same time the shafts 19 and 20 are rocked about the arbor 4 to an lextent rais from the ground.

a rod 68 extending between the uprights57.

The throw-of 67 has fast thereto a rod 682L extending forwardly and carried by a guide 69 on one ofthe uprights or standards 44.

The rod 68a terminates in a pedal 70 between In order to move the loclr At a suitable point in its length the which and the guide 69 there is interposed y a spring 71 tending to hold the throw-Oiflever 67 in the inactive position. The up rights 57 are strengthened by bracesv 72.f

The two plows carried by the shafts 19 and 2O are providedv with depth Wheels 73, being connected .to the plows by brackets 74, shown in Figs.' 1 and 2. 1t Vis unnecessary to provide the other two plows with VVVdepth wheels, sincev the depth wheel 7301l eac-h plow 52 or 53, as the the other sition. prising the shaft 60 with its hand wheel 61,

active plow in proper working po* needs no particular holding means in the nature of a pawl and ratchet inY order to prevent the plows from entering more case may be, sustains 1 For this reason the windlass, 'com` deeply than desired into the ground. V.The

depth to which the plows will enter'VY the ground maybe changed by adjusting the l. In a plow structure, a rockable bodyy member mounted on an axis transverse of the structure, plow beams carried by the` rockable body memberl and participating in the rocking movements thereof, and means for causing said rocking movements comprising a rock shaft, arms fast to and radiating from the rock shaft, means for causing the rocking of the rock shaft, and links connecting the arms to the plow beams, and means located between the ends of the links and engageable over the rocker shaft for locking the rockable body in an elevated position.

2. In a plow structure, a rockable body member mounted on an axis transverse of the structure, plow beams carried by the rockable body member and participating in the rocking movements thereof, and means for causing said rocking movements comprising a rock shaft, arms fast to and radiating from the rock shaft, means for causing the rocking of the rock shaft, and links connecting the arms to the plow beams, each link being shaped to form a socket or recess to engage'over the shaft to lock the plow beams in the elevated position.

3. In a plow structure, a rockable body member mounted on an axis transverse of the structure, plow beams carried by the rockable body member and participating in the rocking movements thereof, and means for causing said rocking movements comprising a rock shaft, arms fast to and radiating from the rock shaft, means for causing the rocking of the rock shaft, and links connecting the Aarms to the plow beams, each link being shaped to form a socket or recess to engage over the shaft to lock the plow beamsin the l elevated position, and a throw-off lever asso` A ciated with one of the links to lift the latter and thereby rock the shaft to move bothlinks` to the unlocked position.

4. In a plow structure, plow beams rockable about an axis transverse of the structure, and means for rocking the plow beams and looking them in the elevated position, comprising a rock shaft, arms radiating therefrom, and links connecting the plow beams with the arms, with each link having a portiongshaped to engage over the shaft when the arms are in substantially parallel relation with the links, to provide a dead center lock. n

5. In a plow structure, plow beamsv rockable about an axis transverse of the structure, and means for rocking the plow beams and locking them in the elevated position,

comprising .a rock shaft, arms radiating there-from, and links connecting the plow beams with the arms, with eachv link having a portion'shaped to engage over the shaft when the armsl are in substantially parallel relation with the links, to provide a dead center lock, said lock structure having a, throw-off means comprising an angle'lever associated with one of the links for engaging it in the locked position, and manipulating means Afor the angle lever, whereby it may be moved to lift the locked link from the shaft and thereby release the plow beams.

In testimony that we claim the foregoing as our own, we have hereto afliXed our signatures.

BENJAMIN E. REED. JOHN E. CLIPPINGER. 

